Index: dev/ata/atapi-cd.c
===================================================================
RCS file: /sand/CVSROOT/ni/src/freebsd/sys6.0/dev/ata/atapi-cd.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- dev/ata/atapi-cd.c	14 Jun 2006 20:30:33 -0000	1.1
+++ dev/ata/atapi-cd.c	14 Jun 2006 20:32:35 -0000	1.2
@@ -731,6 +731,8 @@
     else {
 	pp->sectorsize = cdp->block_size;
 	pp->mediasize = cdp->disk_size;
+	if (dw + pp->acw != 0)
+	  pp->mediasize = INT32_MAX; /* Pick a number. */
     }
     pp->mediasize *= pp->sectorsize;